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US 4,374,519 AGranted
Spinal massage device
OwnerAmos K. Stauftinventor
Life of this patent
Estimating the term…
Abstract
A spinal massage device comprising four rubber balls mounted in pairs on opposite sides of a linking plate such that the balls are rotated along a supporting surface, such as the floor, as the user lies with his spine on the device and then moves his back parallel to the floor.
Claims4
A spinal massage device comprising:
- an elongated linking plate having a first end and a second end;
- a first resilient member and a second resilient member mounted on opposite faces of the first end of the linking plate, and means connecting the first resilient member and the second resilient member such that they are disposed to be rotated together as well as with respect to one another;
- a third resilient member and a fourth resilient member mounted adjacent opposite faces of the second end of the linking plate, and means connecting the third resilient and the fourth resilient member such that they are disposed to be rotated together, as well as with respect to one another;
- the first resilient member and the third resilient member being mounted on the same side of the linking plate so as to be movable toward one another as the second resilient member and the fourth resilient member are moved away from one another;
- and
- said first, second, third, and fourth resilient members each comprise resilient balls of equal diameter and in which the linking plate has a width less than the diameter of said balls whereby the user can roll his spine on the balls as they are rolled along a supporting surface.
3 more elements
Dependencies are inferred from the claim text.